Steam-pump



(N0 MOd STEAM PUMP.

PatentedJune 28, 1892.

* UNITED STATES PATENT OFFICE.

JOHN MASLIN, OF JERSEY CITY, NEW JERSEY.

STEAM-PUMP.

SPECIFICATION forming part of Letters Patent No. 477,949, dated June 28,1892. Application filed February 25, 1892. Serial No. 2 2,807. (Nomodel.)

To all whom it may concern:

Be it known that I, JOHN MASLIN, a citizen of the United States,residing at Jersey City, 1n the county of Hudson and State of NewJersey, have invented certain new and useful Improvements inSteam-Pumps, of which the following is a specification, reference beingbad therein to the accompanying drawings.

Thisimprovement relates more particularly to the arrangement of thevalves of that class of pumps commonly known as pulsometers, and theinvention consists in the peculiar construction, arrangement, andcombinations of parts hereinafter more particularly described, and thendefinitely claimed.

In the accompanying drawings, Figure 1 represents a vertical section ofa pump constructed according to myimprovement. Fig. 2 is a view of partof a pump, showing the device for fastening the discharge-valves. Figs.3 and 4 are a side and top View of a wedge used to fasten the valves.

Referring now to the details of the drawings by letter, A represents theshell, which may be of the form shown orof any approved shape, providedwith three valve-seats B B B" of gun or other suitable metal and set inapertures of suitable size to receive them formed in the shelhwhichapertures are preferably formed by chills, so as to require no fitting.On each of these seats is secured a rubber disk-valve O and a guard D ina manner well understood. At the back of the valveseats B B'areprojecting bosses D, which are grooved to embrace a wedge E, which isthreaded to receive a bolt F, havinga double square head and a pointbelow the head, which bears in adepression on the top of the guard over,the lower valve. Each of these seats is provided with a projecting rim1), that enters the apertures in the shell, and a flange b, which ispressed against the walls of the valve-chamber surrounding theapertures. In

the valves shown in Fig. 1 the flange 1) forms the face of the valve andserves the additional purpose of preventing the valve-seats moving whilethe wedge is being forced into place by the action of the screw. In theform of valve shown in Fig. 2 the valve is on the forced in place by thescrew. From this it will be seen that it is only necessary to set thevalve and seats in their places, or with the wedge between the bosses D,and then turn the bolt F to fasten all three of these valves solidly andsecurely in place.

The discharge-valves and their seats are fastened in a somewhat similarmanner. In this case G is a triangular valve-box having apertures toreceive the valve-seats H H, carrying the rubber disk-valves I I and theguards J J. Between these guards is set a wedge K, through which and thebottom of thevalveboX passes a bolt L, fastened by a nut M, bytightening which the Wedge K is drawn downward, and this securelyfastens the valves and their seats in place. The wedge, however, may betapped to receive a threaded bolt passed in from the bottom, or ashorter bolt may be used passing into the top of the wedge and bearingon a cross-bar set across the outlet of the discharge, as shown indotted lines in Fig. 2.

The arrangement of the neck-valve is also a novel construction, andconsists of a doublefiap valve 0, the two sections being set at a slightangle with each other and the two seats P P therefor being set at aconsiderably greater angle, so that as one section of the valve isseated the other is off its seat, and thus allows a free passage of thesteam through it.

From the above description it will be seen that by my arrangement of thevalves the valves in each of the valve-boxes can be secured in place bya single bolt, and thus the making and assembling of the pumps are verymuch 'cheapened, so that they can be sold at much less cost.

WVhat I claim as new is 1. The combination ofavalve-chamberhav- 2.Thecombinationofavalve-chamberhaving openings to receive removablevalve-seats with a plurality of Valve-seats B, adapted to seats pressedagainst the walls of said chamher around said openings, two of thevalveseats having each a grooved projection D on its back, a wedge setbetween said projections' and having a threaded aperture, and a boltscrewed into said aperture and supported by the third valve-seat,substantially as described.

In testimony whereof I affix my signature,

= in presence of two witnesses, this 24th day of February, 1892.

JOHN MASLIN.

Witnesses:

JOHN ScoTT, WATSON L. REYNOLDS.

